NEW Xcode WWDC15 - Export from Blender - Supported formats - Alembic(.abc)
According to Ton Roosendaal, head of the Blender Foundation, Alembic plays a vital part in the current Gooseberry project pipeline. here's a related reddit discussion
Basic export of Alembic seems to work since 2013.

But then it's still to check whether the Blender-flavored .abc files play nice with XCode.

Alembic was introduced to transfer animated mesh deformations and camera translations from animation and simulation suites to rendering tools.

I overheard on twitter: Work is in progress to base many of Blenders chaching on the open source alembic library.